[C#/WPF] RichTextBox 클래스 : 특정 포맷 문자열 구하기

■ RichTextBox 클래스에서 특정 포맷 문자열을 구하는 방법을 보여준다.

 

▶ 예제 코드 (C#)

using System.IO;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;

#region RTF 구하기 - GetRTF(richTextBox)

/// <summary>
/// RTF 구하기
/// </summary>
/// <param name="richTextBox">RichTextBox</param>
/// <returns>RTF</returns>
public string GetRTF(RichTextBox richTextBox)
{
    return GetString(richTextBox, DataFormats.Rtf);
}

#endregion

#region XAML 구하기 - GetXAML(richTextBox)

/// <summary>
/// XAML 구하기
/// </summary>
/// <param name="richTextBox">RichTextBox</param>
/// <returns>XAML</returns>
public string GetXAML(RichTextBox richTextBox)
{
    return GetString(richTextBox, DataFormats.Xaml);
}

#endregion

#region 텍스트 구하기 - GetText(richTextBox)

/// <summary>
/// 텍스트 구하기
/// </summary>
/// <param name="richTextBox">RichTextBox</param>
/// <returns>텍스트</returns>
public string GetText(RichTextBox richTextBox)
{
    return GetString(richTextBox, DataFormats.Text);
}

#endregion

#region 문자열 구하기 - GetString(richTextBox, dataFormat)

/// <summary>
/// 문자열 구하기
/// </summary>
/// <param name="richTextBox">RichTextBox</param>
/// <param name="dataFormat">데이터 포맷</param>
/// <returns>문자열</returns>
private string GetString(RichTextBox richTextBox, string dataFormat)
{
    FlowDocument flowDocument = richTextBox.Document;

    string result = string.Empty;

    using(MemoryStream memoryStream = new MemoryStream())
    {
        TextRange textRange = new TextRange(flowDocument.ContentStart, flowDocument.ContentEnd);

        textRange.Save(memoryStream, dataFormat);

        memoryStream.Seek(0, SeekOrigin.Begin);

        using(StreamReader streamReader = new StreamReader(memoryStream))
        {
            result = streamReader.ReadToEnd();
        }
    }

    return result;
}

#endregion